Refrigerating apparatus.



No. 68|,3I4. Patented Aug. 27, |901. W. W. HARRIS. REFRIGEBATINGAPPARATUS.

(Applicaion 1ed`Dec. 6, 1900.)

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BEFBIGEBATING APPARATUS.

(Application led Dec. 6, 1900.)

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(Application mea :Dm-n e, 1900.)

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No. 68|,3I4.

(No Model.)

No. 681,314. Pawmed Aug. 27, 1901.l

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REFRIGERATING APPARATUS.

(Application led Dec. 6, 1900.) (No Model.) A 4 Sheets-Sheet 4.

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WILLIAM VALLINGTON HARRIS, OE LONDON, ENGLAND, ASSIGNOR TO PAULPELEIDERER, OE MIDDLESEX COUNTY, ENGLAND.

REFRIGERATHNG APPARATUS.

SPEGIFCATION fOI'mng part 0f Letters Patent No. 681,314, dated August27, 1901.

Application filed December 6, 1900. Serial No. 38,871. (No model.)

To all whom, t may concern.-

Be it known that I, WILLIAM WALLINGTON HARRIS, engineer, asubject of theQueen of Great Britain, residing at 43 Regent Square,

Grays Inn road, London, in the county of Middlesex, England, haveinvented certain new and useful Improvements in Refrigerating Apparatus,of which the following is a specification.

Io This invention has for its object improvements in the construction ofammonia-absorption refrigerating apparatus of the class in which thereis a combined separator and absorber, consisting of two chambers, one

Within the other, communicating at the bottom, the outer chamber beingclosed at the top, While the top of the inner chamber communicates Withthe coils. The action of an apparatus of this class is Well known. It iszo first heated, which has the effect of driving ammonia solution fromthe outer chamber into the inner one and of separating the am- 1nonia(inthe form of gas) from the water.

The ammonia liquees in the coils, and when 2 5 the heating ceases itevaporates again, producing cold, the gas being reabsorbed in the Waterin the combined separator and absorber. There being also now more orless of a vacuum in the outer chamber, the ammonia 3o solution is drawninto it from the inner chamber. When all the gas has evaporated and beenabsorbed,the apparatus is again heated, and so on.

This invention relates to the method of 3 5 constructing and the mannerof heating the combined separator and absorber.

Figure l is a longitudinal section of the separator and absorber. Eig. 2is a transverse section of the same. Eig. 3 is a section to a largerscale of joint at the cylinder ends. Fig. 4 is a side elevation of theautomatic heat-controlling gear. Fig. 5 is al vertical section throughthe valve. Fig. 6 is a plan of the same. Fig. 7 is a perspective view,on

an enlarged scale, of the valve-controlling mechanism.

In Figsl and 2,A is the outer andB the inner chamber of separator andabsober. C represents circulating-tubes in the form of inverted 5ofunnels, which pass the hot liquid from the bottom of the outer chamberto the top of the liquid-level in the inner and Which keep the Wholemass of solution in a constant state of circulation d uring the heatingperiod. This circulating action facilitates the separation of the gasand prevents priming. O' represents hoods above the pipes O, and D is agas-collecting tube which extends the Whole length of the inner chamberand conducts the gas to the other part of the apparatus, which is 6oof'ordinary construction and is not shown in the drawings. This pipe isperforated along the top side with a number of small holes D for thepurpose of collecting the gas from all parts. The holes D2 on the underside are in- 65 tended to allenr any condensed moisture that may havepassed over with the gas to drop back again into the chamber. E is aseries of holes at the lower edge of the inner chamber. They extendround the entire periphery. 7o These holes allow the hot liquid whilecirculating to pass from the inner to the outer chamber during theheating and the gas to return into the Water duringthe absorptionperiod. These holes are always submerged either on one side or the otherwhen heating or cooling. E is a stopped end tube in the lower part ofthe outsidev chamber, in which is inserted an automatic tube forcontrolling the duration and intensity ofthe heating pe- 8o riod. G isan atmospheric-gas burner which heats the separator. In apparatus oflarge size either steam or gas can be used for heating. H is a stoppedend tube inserted in the outer chamber to receive a thermometer. It isof sufficient length to allow the bulb of a thermometer to reach belowthe surface of the hot liquid to ascertain its temperature.

In Fig. 3, .I is the screwed and coned end of cylinder, K the end coverrecessed for cone, 9o and L is a line of calking. By means of this outercone a tight joint and clean fiat surface can be obtained, on Which tocalk, so that very slight calking is sufficient to obtain absolutesoundness. Should it be needed for any reason to take the joint apart,this can easily be done, as at the iirst turning movement the coneslacks out of the recess, and the thread has not been touched or damagedin any Way by the calking. The joint can roo thus be separated and puttogether again for any reasonable number of times.

i to the carrying-bracket O and the other to the rim of the disk. of thedisk acts as a stop, limiting the revolving motion of the valve to aboutone-quarter turn, which is the amount that is required to pass from fullopen to closed. Q is an adjustable stop which can be raised or loweredby the screwed end till the top of the stop and the under side of theBourdon tube eX- actly coincide at a certain temperature. Any increaseof temperature beyond this causes the tube to rise above the stop andrelease it. The spring then comes into play, turns the valve, and shutsoff the source of heat. R is a springcatch on the rim of the disk, soplaced that it strikes and lifts the trigger' S as the disk revolves,but which closes in against the rim, so that it can pass the trigger asthe disk is turned back on the valve being again opened. T is a'hammerwhich is raised by the trigger S and strikes the gong V, giving noticethat the heating is concluded, and X the handle by which the valve isopened when it is desired to again turn on the heat. When the valve isopened, the stop Q is made to bear against the end of the tube M, asshown in Fig. 7. When the temperature has increased to a predeterminedamount, the end of the tuberises, releasing the stop, and the spring W'instantaneously turns the valve W and shuts off the supply of gas to theburner.

What I claim is- 1. In a combined separator and absorber the combinationof a horizontal cylindrical outer chamber, an inner chamber within andcommunicating at the bottom with it, a series of vertical pipes in theinner chamber opening into the lower part of the outer chamber, hoodsabove the pipes and a pipe leading from the top of the inner chamber.

A projection P on the rim 2. In a combined separator and-absorber thecombination of a horizontal cylindrical outer chamber, an inner chamberWithin and communicating at the bottom with it, a series of verticalpipes in the form of inverted fun nels in the inner chamber opening intothe lower part of the outer chamber, hoods above the pipes and a pipeleading from the top of the inner chamber.

3. In a combined separator and absorber the combination of a horizontalcylindrical outer chamber,.an inner chamber Within and communicating atthe bottom with it, a series of vertical pipes in the inner chamberopening into the lower part of the outer chamber, hoods above the pipesand a perforated gascollecting pipe at the top of the inner chamberextending from end to end of it one end of which is led to the outside.

4. In a combined separator and absorber the combination of a horizontalcylindrical outer chamber, an inner chamber within and communicating atthe bottom with it, a series of vertical pipes in the form of invertedfunnels in the inner chamber opening into the lower part of the outerchamber, hoods above the pipes and a perforated gas-collecting pipe atthe top of the inner chamber extending from end to end of it one end ofwhich is led to the outside.

5. In a combined separator and absorber an outer casing consisting of acylindrical body externally coned and internally screwthreaded at theend and a cover having in it an annular recess to receive the end of thebody the inner Wall of which is cylindrical and screw-threaded and theouter Wallis conical, an annular groove for calking being cut around thejunction of the body and end.

6. The combination of a combined separator and absorber, a source ofheat, a valve controlling the same, a spring actuating the valve toclose it, and a hermetically-sealed Bourdon tube exposed to the heat ofthe separator and absorber but not opening into it and controlling thevalve.

WILLIAM WALLINGTON HARRIS. lVitnessesz WILFRED CARPMAEL, JOHN H.WHITEHEAD.

